CN107921862A - The bicyclic isolator of Miniature shearing hub - Google Patents
The bicyclic isolator of Miniature shearing hub Download PDFInfo
- Publication number
- CN107921862A CN107921862A CN201680041798.1A CN201680041798A CN107921862A CN 107921862 A CN107921862 A CN 107921862A CN 201680041798 A CN201680041798 A CN 201680041798A CN 107921862 A CN107921862 A CN 107921862A
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- CN
- China
- Prior art keywords
- shear
- isolator assemblies
- mounting bracket
- hubs
- hub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
- F01N13/1822—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration for fixing exhaust pipes or devices to vehicle body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2530/00—Selection of materials for tubes, chambers or housings
- F01N2530/22—Flexible elastomeric material
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vibration Prevention Devices (AREA)
- Springs (AREA)
- Exhaust Silencers (AREA)
Abstract
Present disclosure is related to a kind of isolator assemblies being used for from the structure division support exhaust component of vehicle.The isolator assemblies have mounting bracket, which has the ring that a pair for limiting mounting hole is spaced apart.Elastomeric shear boss assembly is disposed in the mounting bracket and has at this to outside diameter (OD) shear hub extended and internal diameter (ID) shear hub being arranged in the OD shear hubs between ring spaced apart.The ID shear hubs limit central mounting hole, which is adapted for receiving exterior hanging piece component.
Description
Cross reference to related applications
This application claims the priority for the U.S. non-provisional application number 15/091,210 submitted on April 5th, 2016,
The power for the U.S. Provisional Patent Application No. 62/203,659 submitted for 11st in August in 2015 is claimed in the U.S. non-provisional application
Benefit, whole disclosure contents of each application of the above are incorporated herein by reference.
Technical field
The present disclosure generally relates to a kind of automobile exhaust system isolator.More specifically, present disclosure is related to a kind of isolator,
The isolator is configured for providing very soft ratio placed in the middle, but still with the ability for bearing peak value durability load.
Background technology
The statement of this part only provides background information relevant with present disclosure and may not form the prior art.
Typically, including the motor vehicles of automobile and truck have explosive motor, and the explosive motor is at least coupled
To speed changer and differential mechanism for providing power to the driving wheel of vehicle.Engine exhaust system (generally includes exhaust pipe, urges
Change converter and silencer) engine is attached to so that combustion process is quiet, cleans exhaust and guides combustion product remote
Engine leads to the desired locations usually at vehicle rear.Exhaust system is by being positioned at the frame or one of exhaust system and vehicle body
Exhaust installed part support between a little others supporting structures.Engine luggine is delivered to vehicle body in order to prevent, is vented installed part
Flexible member or sprung suspension member are combined with so that the exhaust system of vehicle is isolated with vehicle body.In order to make the exhaust system of vehicle
It is effectively isolated with the vehicle body of vehicle, it is preferred that isolator includes soft flexure ratio placed in the middle.
The exhaust installed part or isolator of the common prior art include diplopore pendulum-type rubber isolator, these diplopore pendulum-types
Rubber isolator includes solid rubber component or disk, and the thickness of the solid rubber component or the disk is at least 3/4ths English
At least a pair of apertures that is very little and being provided through its extension.Each receive an elongated metallic stud hanging piece in these apertures.
Metallic stud hanging piece usually has widened conical nose, and widened conical nose can be forced through the hole in isolator
Mouthful, but cannot easily be removed from isolator.The opposite end of hanging piece is soldered to or is otherwise fixed to vehicle
In supporting point on or one of the component of exhaust system on.
Other designs for isolator include the elastomer mold with single hole spoke design, and wherein spoke is loaded
So that it bears pulling force and compression, elastomer mold is designed with single hole shear supporting leg, and single hole shear supporting leg design includes
A pair of of molding supporting leg of shearing is subjected on main loading direction, and elastomer mold has bell design.
Most of high temperature elastomers for being vented in isolator assemblies are shown poor due to low tearing strength characteristic
Tensile fatigue characteristic.It is therefore preferable that make elastomeric material loading so that it bears to compress or shears.For example, as above institute
State, circular tray designs provide two pins of opposite end insertion in elastomer element, this allows the elastomer rope at connection both ends
Upper loading is so that it bears pulling force.It is also that the maximum of material is abused although this is typically the design of least cost.In order to
Disappear failure risk, and flexible-belt and/or rigid strip are commonly designed in the inside of elastomeric discs or its exterior circumferential.
The isolator of spoke design loads elastomeric material so that it bears compression and pulling force.Tensile load to design
It is easily broken off under overload condition.Stress intensity is directly proportional with the ratio between load to minimum spoke sectional area.Spoke design
Other requirement be, the weight by exhaust is static preload when so that counterpart or hanging piece pin are in flexion zones
Between two parties., if it is not, the gap being then designed into isolator is up to bottom or is positioned at bottoming out state.This
Cause that soft ratio placed in the middle cannot be utilized, so as to cannot achieve the purpose that isolator.
Shear the isolator of supporting leg design and have and be usually vertical main loading direction and usually lateral secondary add
Carry direction.When shearing supporting leg design is loading on its main loading direction, loading method is preferable shearing loading.Shearing
Formula loading can be designed to have it is desirable that softness.But secondary loading direction can produce the drawing for being unfavorable for durability
Stretch compression stress.In addition, the soft ratio placed in the middle that secondary loading direction has is harder than the soft ratio placed in the middle of main loading direction
Twice to three times, this is also unfavorable condition.
The sustainable development of elastomer installed part has been directed to such elastomer installed part：It includes soft ratio placed in the middle,
The undesirable tension load of elastomeric bushing is avoided at the same time, and avoids the stress concentration of fragility.Although in existing skill
This point is had been realized in the shear hub design of art, but the stress concentration in gap end is still a problem.
The content of the invention
On the one hand, present disclosure is related to a kind of isolator assemblies being used for from the structure division support exhaust component of vehicle.
The isolator assemblies can include mounting bracket, which has the ring that a pair for limiting mounting hole is spaced apart.Elastomer
Shearing boss assembly can be disposed in the mounting bracket.The elastomeric shear boss assembly can be included in this to ring spaced apart
Between outside diameter (OD) shear hub extended and internal diameter (ID) shear hub being arranged in the OD shear hubs.The ID shear hubs can
To limit central mounting hole, which is adapted for receiving exterior hanging piece component.
On the other hand, present disclosure is related to a kind of isolator group being used for from the structure division support exhaust component of vehicle
Part.The isolator assemblies can include mounting bracket, which has a pair of circumferential ring spaced apart, these circumferential ring limits
Determine circular mounting hole.It can include the elastomeric shear boss assembly being arranged in the mounting bracket.The elastomeric shear boss assembly
This can be included in outside diameter (OD) shear hub that extends between ring spaced apart and be arranged in the OD shear hubs and pass through
Internal diameter (ID) shear hub of the OD shear hubs is connected to by transition portion.The ID shear hubs can include side opposite on the whole
A pair of of ID shearing hub portions upwardly extended, these shearing hub portions limit common center mounting hole, the common center mounting hole
It is adapted for receiving exterior hanging piece component.
In another aspect, present disclosure is related to a kind of isolator group being used for from the structure division support exhaust component of vehicle
Part.The isolator assemblies can include mounting bracket, which includes limiting the week that a pair of circular mounting hole is spaced apart
To ring and with aperture bottom wall.Elastomeric shear boss assembly can be disposed in the mounting bracket.The elastomeric shear
Boss assembly can be included in this to outside diameter (OD) shear hub that extends between circumferential ring spaced apart and be arranged in OD shearings
Internal diameter (ID) shear hub of the OD shear hubs is connected in hub and via transition portion.The ID shear hubs can be included in totality
The ID shearing hub portions for a pair of of mirror image that upper opposite side upwardly extends, these shearing hub portions limit conllinear central mounting hole,
The conllinear central mounting hole is adapted for receiving exterior hanging piece component.This to mirror image ID shearing hub portion can be along it
Axial length is attached to the approximate mid points of the OD shear hubs at approximate mid points by the transition portion.
From provided herein is explanation in it will be clear that other scope of applications.It should be understood that this explanation and instantiation are only intended to
For illustration purposes, the scope without being intended to limit present disclosure.
Brief description of the drawings
Fig. 1 is the isometric view of vehicle exhaust system；
Fig. 2 includes the front view and side view of shear hub isolator according to a first embodiment of the present invention；
Fig. 3 is the section view of the shear hub isolator of Fig. 2；
Fig. 4 is the translucent isometric view of the shear hub isolator of Fig. 2；
Fig. 5 includes two isometric views of shear hub isolator according to a second embodiment of the present invention；
Fig. 6 is the cross-sectional plan view of a part for the isolator mounting bracket of another embodiment, shows multiple rivetings
Rib is closed, these riveted ribs are used for jointing fastener and for discharging answering on the stent from the pressure fitted fastener of stent
Power；
Fig. 7 is the perspective view of another embodiment of present disclosure, wherein bicyclic mounting bracket is combined with outside diameter (" OD ") shearing
Internal diameter (" ID ") shear hub of hub and a pair of of mirror image；
Fig. 8 is the section view of the section line 8-8 interceptions in Fig. 7, better illustrates the ID shearings to mirror image
Hub；
Fig. 9 is the perspective view of only bicyclic mounting bracket and embedded fastener；
Figure 10 is the front view of another embodiment of present disclosure, shows that the ID with OD shear hubs and a pair of of mirror image is cut
The bicyclic mounting bracket of hub is cut, but wherein, the compression buffer of shear hub extends the whole axial length to ID shear hubs；
Figure 11 is the perspective view of the component of Figure 10；
Figure 12 is that a quarter section of a part for the component of Figure 11 of the section line 12-12 interceptions in Figure 11 regards
Figure；
Figure 13 is to face elevation view according to another embodiment of the bicyclic isolator assemblies of present disclosure, wherein, it is bicyclic
The clamping face of mounting bracket has hole, which extends through the clamping face parallel to the bottom surface of mounting bracket and run through bolt to provide
The configuration of stent；
Figure 14 is the perspective view of the isolator assemblies of Figure 13；And
Figure 15 be according to another embodiment of the isolator assemblies of present disclosure, wherein, in OD shear hubs and ID shear hubs
Between do not form gap to release the rubber pulling force to bolt head.
Embodiment
Substantially be merely exemplary below for the explanation of preferred embodiment, and be not meant to limit present disclosure, its
Using or purposes.
Referring now to attached drawing, figure 1 illustrates vehicle exhaust system 10, which is included according to the present invention
Exhaust system isolator 100 and whole by reference number 100 refer to.Typical vehicle (does not show including explosive motor
Go out), vehicle body (not shown), suspension system (not shown) and exhaust system 10, the exhaust system be attached to explosive motor and
It is typically supported at under-vehicle.Explosive motor is designed to provide for one or more driving wheels of vehicle dynamic
Power, and combustion product is guided the expectation exhaust position to around outside vehicle by exhaust system.
Exhaust system 10 includes silencer 14, intermediate tube 12, catalytic converter 15, exhaust hanging piece pin 16, tail pipe 18 and tool
There are multiple isolator assemblies 100 of different designs.Intermediate tube 12 is generally attached to engine or catalytic converter 15, which turns
Change device and be then attached to the exhaust pipe extended between engine and catalytic converter.Catalytic converter 15, which can be attached to, to lead to
The single exhaust pipe of single exhaust manifold, or the catalytic converter can be attached to the bypass vent for leading to multiple exhaust pipes
Pipe, the plurality of exhaust pipe lead to multiple exhaust manifolds.In an alternative embodiment, intermediate tube 12 can be attached to multiple urge
Change converter, the plurality of catalytic converter links together in 14 upstream of silencer.In a further alternative, vehicle can be with
With multiple exhaust pipes, multiple catalytic converters, multiple intermediate tubes and the multiple silencers to link together.Should further it manage
Solution, exhaust system can include single tail pipe or multiple tail pipes.It will be further understood that the exhaust system isolation of the present invention
Device can be applied to any kind of exhaust system, including but not limited to have two parallel exhaust lines from combustion system extension
The dual exhaust system in footpath.
Exhaust system 10 is used for the exhaust guiding from engine to the desired locations around outside vehicle.When through
When exhaust system is advanced, it is vented and is cleaned by catalytic converter 15, and silencer 14 makes to produce in the combustion process in engine
Noise carry out noise reduction.The present invention relates to exhaust system isolator 100, the exhaust system isolator by exhaust system 10 install to
Vehicle while isolation and movement of the exhaust system 10 relative to vehicle that decay.
Referring now to Fig. 2 to Fig. 4, exhaust system isolator assemblies 100 include mounting bracket 102 and are positioned at mounting bracket
Interior elastomeric body 104.Mounting bracket 102 is to limit metal or the modeling of the rack mounting apertures 112 for elastomeric body 104
Expect component.In rack mounting apertures 112, fastener 108 (making tommyhead bolt in figure 3 most preferably to find out) is provided for being vented
Isolation of system device assembly 100 is fixed on another structure member of vehicle frame or vehicle.Although Fig. 2 illustrates stent peace
Dress face 106 is generally orthogonal to the positive 102a of stent 102, but bracket mounting face 106 is arranged in need to make stent 102 with
It is within the scope of present disclosure in any orientation that the mounting structure of vehicle suitably has a common boundary.
Referring now to Fig. 3, isolator stent 102 includes the inner circumferential surface for limiting rack mounting apertures 112, the inner circle weekly form
Face is glued in elastomeric body 104.Rack mounting apertures 112 include bolt head recess 116 (Fig. 4), the bolt head recess from
Isolator stent 102 cuts out or is formed in isolator stent, to provide space for the bolt head 118a of fastener 108.
Rack mounting apertures 112 include being adjacent to the leading edge 114 of bolt head recess 116, and the leading edge is including 116 direction of bolt head recess
There is provided on all directions and constant bottom out ratio.The general shape of bolt head recess 116 can be square or any other shape
, to prevent fastener 108 from rotating in an assembling process.Further set between bolt head recess 116 and bracket mounting face 106
It is equipped with aperture 118.Between the shoulder (not shown) of fastener 108 and aperture 118 and bolt head 118a is to bolt head recess
It is used to aperture 118 is sealed from leakage during the molding for fitting snugly in elastomeric body 104 of 116 contact 119.Will
The bolt head 120 of fastener 108, which is encapsulated in isolator assemblies 100, provides greater compactness of design.
Elastomeric body 104 further includes OD shear hubs 124, ID shear hubs 122 and bottoms out hub 126.Elastomeric body 104
Central mounting hole 110 is limited, which is designed to receive inner tube, bolt or hanging piece pin 16.Hanging piece pin 16 is also
It can include being used as head and the lantern ring that hanging piece slides limiter.Hanging piece pin 16 is attached to the component of exhaust system 10.Although branch
Frame 102 is disclosed as being attached to the structure member of vehicle, and elastomeric body 104 is disclosed as being attached to using hanging piece pin 16
The component of exhaust system 10, but stent 102 is attached to exhaust system 10 and is isolated exhaust system using hanging piece pin 16
The structure member that device assembly 100 is attached to vehicle is within the scope of present disclosure.Therefore, exhaust system 10 passes through one or more
A exhaust system isolator assemblies 100 are fixed to vehicle.
Elastomeric body 104 includes the chamfering 130 of the at one end positioned at mounting hole 110.Chamfering 130 is handed over hanging piece pin 16
Boundary.In at least a preferred embodiment, chamfering 130 be adjustable, terminate at isolator stent 102 with usually flushing before
Edge.In at least one embodiment, the diameter of chamfering is adjusted so that the wall thickness of OD shear hubs 124 is equal to ID shear hubs 122
Wall thickness.Elastomeric body 104 limits circumferential annular space 128.Although annular space 128 is shown as installing relative to stent
Hole 112 is asymmetric, but is within the scope of present disclosure with annular space 128 symmetrical with rack mounting apertures 112.For
The asymmetric design of annular space 128 allows central mounting hole 110 in the assembling of exhaust system isolator assemblies 100 or static state
It is disposed in during stress state at or near the center line of rack mounting apertures 112.This is to mould installation by offset of vertical
Hole 110 is realized.
Gap 128 and chamfering 130 both designs, the particularly radial dimension in gap 128 and the radial thickness of chamfering 130
The distance that the hanging piece pin for determining to be arranged in mounting hole 110 can be translated radially relative to rack mounting apertures 112.Until sky
Gap 128 and/or chamfering 130 close, and the radial motion of central mounting hole 110 causes the pure shear in elastomeric body 104, nothing
By loading direction how.As discussed below, this shear load is produced is disposed in structure branch in elastomeric body 104
In part between frame mounting surface 106 and hanging piece pin 16.By changing gap 128 and chamfering 130 in the selected direction or passing through
Gap is added in the specific circumferential position of elastomeric body 104, can be completed in the selected direction independently of other directions
Ratio and flexure adjustment.
As in the accompanying drawings it can be seen that, gap 128 extend beyond stent 102 and in the axial direction with chamfering 130
It is overlapping to limit ID shear hubs 122.ID shear hubs 122 are subjected to shear load due to the flexure of elastomeric body 104.It is being vented
During isolation of system device assembly 100 bears larger load, gap 128 and chamfering 130 will close, and by by elastomeric body
104 hub 126 that bottoms out is clipped between hanging piece pin 16 and rack mounting apertures 112 and assigns elastomeric body 104 compression stress.When every
Be subjected to from device assembly 100 it is high when bottoming out load, hanging piece pin 16, bottom out it is this between hub 126 and rack mounting apertures 112
Contact eliminates the compression in OD shear hubs 124 and ID shear hubs 122 and compression stress thus.Which improve exhaust system
The Performance And Reliability for isolator assemblies 100 of uniting.
Exhaust system isolator assemblies 100 avoid the tensile stress load in elastomeric body 104 during radial load.
Shearing load in all directions enables exhaust system isolator assemblies 100 to realize lower and more stable flexure ratio
Rate.This is because modulus of shearing (shear load) is less than elasticity modulus (tensile load).Similarly, elastomeric material bears to shear
When flexible ratio ratio it is more consistent when bearing pulling force.Flexible ratio and flexure can be symmetrical on central axis or can be with
Change elastomeric body 104 or the size or shape of rigid structure using annular space 128 and chamfering 130 or by other means
Shape adjusts.Additional advantage is, the flexure ratios of ID shear hubs 122 is linear during whole flexure (until gap
128 closures), which increase the robustness of the design on position.This means any preloading from position of related features will not
Flexure ratio is increased sharply, and noise, vibration and the sound vibration roughness (NVH) of vehicle are become with exhaust geometric tolerances
Change.
Fig. 5 illustrates the alternate embodiment of exhaust isolator assemblies 200.This component 200 include hanging piece stent 202,
Elastomeric body 208 and fastener 206." recess " 226 is formed in hanging piece stent 202 to prevent fastener 206 from assembling
Rotation during vehicle.Elastomeric body 208 includes central mounting hole 210 to accommodate bar hanging piece (not shown).At it
In terms of him, isolator assemblies 200 are similar to isolator assemblies 100.Although it is not shown, it will be appreciated that, isolator assemblies 200
What is shown including ID shear hubs and OD shear hubs and in isolator assemblies 100 bottoms out hub, annular space and chamfering.
Referring to Fig. 6, the hanging piece stent 102 ' of another embodiment is shown.Except bracket mounting face 106 ' is matched somebody with somebody including gap
Run mouth 118 ' rather than pressure cooperation aperture 118 jointly and opening 118 ' includes multiple interference fit riveted ribs spaced apart
Outside 118a ', hanging piece stent 102 ' is identical with hanging piece stent 102 in other respects.Consolidate fastener head in riveted rib 118a '
Determine when rubber over mold, opening 118 ' helps to mitigate any excessive circumference stress on bracket holes.
Referring now to Fig. 7 to Fig. 9, bicyclic isolator assemblies 300 are illustrated (herein according to another implementation of present disclosure
Referred to as " isolator " 300).Isolator 300 provides the isolator assemblies 100 of compact size, but the elastomer combined
The amount of material is substantially double, and load so as to even better is dispersed in the larger portion of elastomeric material of isolator
On, and therefore when elastomer is in total travel strain make it that lower stress can be produced on elastomeric material.This permits
Perhaps pre-add loading capability reaches the rigidity of higher, but stress is lower under total travel strain.
Isolator 300 is included with the installation by the hole 302a1 and 302a2 axially aligned the circular mounting hole 302a formed
Stent 302 and it may be inserted into the elastomeric shear boss assembly 304 being molded into mounting bracket 302.Mounting bracket 302 can be with
It is made of aluminium or any other intensity suitable material for resisting these elements.In this embodiment, mounting bracket 302 has
There is the configuration of uniqueness, it includes contributing to the double circumferential rings 306 spaced apart to form mounting hole 302a.Ring 306 is from sidewall sections
308 extend and are merged into end wall 310.The bottom wall 312 of mounting bracket 302 includes aperture 314, the thread spindle of fastener 316
318 are positionable through the aperture.Fastener 316 enables isolator 300 to be fixed to exhaust component or structure with vehicle
On the associated outer mounting member in part.Fastener 316 further includes head portion 320, the shape and size of the head portion
It is determined to be so that it is resided in the recess 322 of mounting bracket 302, such as optimal finding in Fig. 9.Recess 322 can be by being spaced
Upright shoulder portion or rib 322a open, parallel it is (one only visible in fig.9) formed, these upright shoulder portions or rib from
The inner surface of bottom wall 312 projects upwards.Alternately, recess 322 can by using only a wall or shoulder portion and effective
Ground is formed, and the bolt head which prevents from being positioned in rotates.In any embodiment, work as spiral shell
When line nut is tightened on thread spindle 318, recess 322 prevents fastener 316 from rotating.In elastomeric shear boss assembly 304
In molding process, fastener 316 can be overmolded (that is, captured) in recess 322.It is alternatively possible to use bonding
Agent helps head portion 320 being fixed in a part for the elastomeric material above the head portion.
With further reference to Fig. 7 and Fig. 8, elastomeric shear boss assembly 304 includes the outside diameter (" OD ") of the series connection of unique mirror image
The configuration of shear hub and internal diameter (" ID ") shear hub.By the OD shear hubs 324 extended between two circumferential rings 306 and by sky
A pair of of ID shear hubs 326 (or " ID shears hub portion " 326) that gap 328 is formed, promote this configuration, these gaps passed through
Cross part 325 and be attached to OD shear hubs 324.In this example, ID shear hubs 326 and gap 328 are mutual mirror images, although
They must not necessarily have accurate mirrored configuration in practice.Similarly, although showing transition part in figures 7 and 8
325 are divided to be disposed at the axial midpoint of OD shear hubs 324, but if desired, which can shear from OD
The axial centre offset of hub.
It will be further understood that although Fig. 7 shows that ring 306 forms complete circle into Fig. 9, this configuration can be with
Changed.For example, ring 306 can form a pair of parallel arched member.Further, ring 306 needs not be circular shape, and
It is that may be modified as non-circular, and any other shape is therefore actually used, preferably to meet application-specific
Need.
OD shear hubs 324 and the two ID shear hubs 326 are located between the end wall 310 of mounting bracket 302, and therefore not
Extended axially outward as isolator 100 from end wall 310.However, OD shear hubs 324 and ID shear hubs 326 can be alternative
Ground is formed so that one or both is extended axially outward with further limit slippage from end wall 310.ID shear hubs 326 are from installation
The radial center of hole 302a deviates radially further.Central mounting hole 330 collinearly extends through ID shear hubs 326, to permit
Perhaps a part for exterior hanging piece is received wherein.Central mounting hole 330 is therefore also from the radial center radial direction of mounting hole 302a
Ground deviates, to provide offset of vertical to preload to sink.
With further reference to Fig. 8, the compression buffer part 332 of ID shear hubs 326 is protruded towards bottom wall 312.In Fig. 7 and figure
Visible partially circumferentially gap 334 is by removing a part of material for the transition portion 325 for forming adjacent bottom wall 312 and shape in 8
Into.This relieves the tensile stress used in the stroke away from bottom wall 312.
With reference to Figure 10 to Figure 12, the isolator assemblies 400 according to another embodiment of present disclosure are shown.Isolator group
Part 400 is similar to isolator 300 in some aspects, and is combined with bicyclic mounting bracket 402, in this example, except with
The big fusion portion 411 of end wall 410 and eliminate outside rib 322a, the bicyclic mounting bracket is identical with mounting bracket 302.Including with
The similar elastomeric shear boss assembly 404 of elastomeric shear boss assembly 304, the latter include OD shearing hub portions 424 and a pair of of mirror
The ID shearing hub portions 426 of picture.Central mounting hole 430 extends through these ID shearing hub portions 426.Fastener 416 with it is tight
The identical mode of firmware 316 is overmolded in mounting bracket 402.However, in this embodiment, including partly by sky
The compression buffer part 432 that gap 434 is formed, the gap extend along the whole axial length of these ID shearing hub portions 426.
In this example, the radius of curvature of compression buffer part 432 is with the lower wall portion 404a's of elastomeric shear boss assembly 404
Radius of curvature is identical, although the radius of curvature on the two surfaces need not be identical.Buffered by the compression of whole axial length
The increased surface area and elastomeric material that device part 432 provides further contribute to reduce pressure when bottoming out situation
Stress under compression.Gap 434 preferably also incorporates the stress release part 434a of radius increase in its opposite end.Gap 434
Width and its circumferential lengths can be with significant changes.However, in most cases, the width in gap 434 can be in about 2mm extremely
Between the through thickness of elastomeric shear boss assembly 404.Gap 434 can make pulling force component and elastomeric shear boss assembly 404
Adjacent side part disengages.
The other benefit of the isolator 400 of Figure 10 to Figure 12 is by the outer end shape of one in ID shear hubs 426
Caused by the incrementss of the material of small spine 430a.As shown in figure 12, spine 430a is used as on the internal diameter of ID shear hubs 426
Interference section.Spine 426a further helps isolator assemblies 400 to avoid due to being centrally located in mounting hole 430
Any possible noise and/or pollution problem caused by the imperfect connection of the end position of exterior hanging piece.
With reference to Figure 13 and Figure 14, the isolator assemblies 500 according to another embodiment of present disclosure are shown.Isolator group
Part 500 is similar to isolator assemblies 400 and the mounting bracket 502 including accommodating elastomeric vibration isolator component 504.Except installation
Outside the through hole 514 that stent 502 is inserted through formed with threaded fastener 516, elastomeric vibration isolator component 504 and Figure 10 to figure
Component 404 shown in 12 is identical.Clamping face 540 can be the conventional planar surface for having anti-rotational feature.Alternately, press from both sides
Tight face 540 can be the arch connector (as shown in Figure 13 and Figure 14) of extruding or or even may can have vee-block configuration.
This allows mounting bracket 502 to clamp the facet for being attached to optimization with accurate clock orientation (that is, accurate angular orientation).
With reference to Figure 15, the isolator assemblies 600 according to another embodiment of present disclosure are shown.Isolator assemblies 600
It is similar with isolator 300 and be molded in including mounting bracket 602, elastomeric shear boss assembly 604 in the mounting bracket, and
And the head portion of mounting bracket encapsulation threaded fastener 616.Elastomeric shear boss assembly 604 includes OD shear hubs 624, ID
Shear hub 626 and the hole 630 for extending through ID shear hubs.However, the difference of isolator assemblies 600 is, in elasticity
Do not include gap in body shearing boss assembly 604.Lack gap 334 or 434 and bottom out ratio for what isolator assemblies 600 provided higher
Rate.In addition, mounting bracket 602 has the support ribs 602a being removed, and end wall 610 also has the height reduced.These are repaiied
Change the stress further reduced on elastomeric material.Due to making the OD shear hubs above the bolt head of fastener
624 sections are thicker, so still another embodiment can have the isolator assemblies 600 of total height higher.
Although it have been described that a variety of different embodiments, but it would be recognized by those skilled in the art that can make modification or
Change is without departing from present disclosure.These examples illustrate a variety of different embodiments, but are not intended to limit present disclosure.Therefore,
It should only consider that limitation necessary to related art carrys out freely geographical solution present specification and claims.
Claims (27)
1. a kind of isolator assemblies being used for from the structure division support exhaust component of vehicle, the isolator assemblies include：
Mounting bracket, the mounting bracket have the ring that a pair for limiting mounting hole is spaced apart；And
The elastomeric shear boss assembly being arranged in the mounting bracket, the elastomeric shear boss assembly be included in this to be spaced apart
Outside diameter (OD) shear hub extended between ring and internal diameter (ID) shear hub being arranged in the OD shear hubs, the ID shear hubs
Central mounting hole is limited, which is adapted for receiving exterior hanging piece component.
2. isolator assemblies as claimed in claim 1, further include the fastener from mounting bracket extension, for making the installation
Stent can be fixed on external component.
3. isolator assemblies as claimed in claim 1, wherein the ID shear hubs include the ID shear hubs of a pair of of mirror image, this is to mirror
The ID shear hubs of picture include collinearly extending through central mounting hole therein.
4. isolator assemblies as claimed in claim 1, wherein the ID shear hubs to mirror image are attached to by transition portion
The OD shear hubs.
5. isolator assemblies as claimed in claim 1, the wherein mounting bracket limit a pair of end walls, and the wherein OD is sheared
Hub and the ID shear hubs at least extend while end wall is axially flushed with this.
6. isolator assemblies as claimed in claim 1, wherein the ID shear hubs and the center mounting hole are from the mounting bracket
The radial center of mounting hole radially offset.
7. isolator assemblies as claimed in claim 2, the wherein fastener are trapped in by the elastomeric shear boss assembly
In the mounting bracket.
8. isolator assemblies as claimed in claim 1, are additionally included in a part and the one of the ID shear hubs for the OD shear hubs
The gap formed between part.
9. isolator assemblies as claimed in claim 8, the wherein gap are arranged to the bottom wall part for being adjacent to the mounting bracket
Point.
10. isolator assemblies as claimed in claim 3, the part for being additionally included in the ID shear hubs to mirror image is cut with the OD
Cut the gap formed between a part for hub.
11. isolator assemblies as claimed in claim 10, the wherein gap are arranged to the bottom wall for being adjacent to the mounting bracket
Part.
12. isolator assemblies as claimed in claim 8, in addition to the compression buffering formed in a part for the ID shear hubs
Device, the compression buffer form the part for being generally toward the bottom wall portion of the mounting bracket from the ID shear hubs and protruding.
13. isolator assemblies as claimed in claim 12, the wherein compression buffer extend the whole axial direction of the ID shear hubs
Length.
14. isolator assemblies as claimed in claim 10, in addition to formed in a part for the ID shear hubs to mirror image
Compression buffer, which forms the bottom wall part that the mounting bracket is generally toward from the ID shear hubs to mirror image
Divide a prominent part.
15. isolator assemblies as claimed in claim 14, the wherein compression buffer are along the ID shear hubs to mirror image
Whole axial length extension.
16. isolator assemblies as claimed in claim 1, the wherein mounting bracket further include bottom wall portion and through hole, the through hole
It is generally parallel to the bottom wall and extends through the bottom wall portion, and wherein fastener is disposed in the through hole.
, should 17. the central mounting hole of isolator assemblies as claimed in claim 1, wherein the ID shear hubs includes interference section
Interference section has the elastomeric material of incrementss to limit spine.
18. this of isolator assemblies as claimed in claim 1, the wherein mounting bracket are arranged to each other ring spaced apart
It is parallel.
19. a kind of isolator assemblies being used for from the structure division support exhaust component of vehicle, the isolator assemblies include：
Mounting bracket, the mounting bracket have the circumferential ring that a pair for limiting circular mounting hole is spaced apart；And
The elastomeric shear boss assembly being arranged in the mounting bracket, the elastomeric shear boss assembly be included in this to be spaced apart
Outside diameter (OD) shear hub that extends between ring and it is arranged in the OD shear hubs and is connected to the OD via transition portion and cut
Internal diameter (ID) shear hub of hub is cut, which includes a pair of of ID shear hubs portion that side opposite on the whole upwardly extends
Point, these shearing hub portions limit common center mounting hole, which is adapted for receiving exterior hanging piece
Component.
20. isolator assemblies as claimed in claim 19, further include：
From the fastener of mounting bracket extension, for enabling the mounting bracket to be fixed to external component.
21. isolator assemblies as claimed in claim 19, wherein this forms mirror image pair to ID shearing hub portions, and wherein,
This is connected to the OD shear hubs by the transition portion to the midpoint of ID shearing hub portions.
22. a kind of isolator assemblies being used for from the structure division support exhaust component of vehicle, the isolator assemblies include：
Mounting bracket, the ring that a pair which includes restriction mounting hole is spaced apart and the bottom wall with aperture；
The elastomeric shear boss assembly being arranged in the mounting bracket, the elastomeric shear boss assembly be included in this to be spaced apart
Outside diameter (OD) shear hub that extends between ring and it is arranged in the OD shear hubs and is connected to the OD via transition portion and cut
Internal diameter (ID) shear hub of hub is cut, which includes the ID shearings for a pair of of mirror image that side opposite on the whole upwardly extends
Hub portion, the shearing hub portion to mirror image limit conllinear central mounting hole, which is adapted for connecing
Receive exterior hanging piece component；And
This to mirror image ID shearing hub portion be attached at the approximate mid points of length axially along by the transition portion
The approximate mid points of the OD shear hubs.
23. isolator assemblies as claimed in claim 22, further include fastener, which extends across in the bottom wall
Aperture and the part capture for being formed the elastomeric material of the elastomeric shear hub, the fastener enable the mounting bracket
Enough it is fixed to exterior installation equipment.
24. isolator assemblies as claimed in claim 22, wherein these circumferential rings spaced apart are not round.
25. isolator assemblies as claimed in claim 22, wherein these rings spaced apart include a pair of of arched member.
26. isolator assemblies as claimed in claim 22, the wherein mounting bracket include being used to receive external fastening extremely
Few one runs through bolt hole.
27. isolator assemblies as claimed in claim 26, wherein should be oriented to be parallel with the elastomer through bolt hole and cut
Cut boss assembly.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562203659P | 2015-08-11 | 2015-08-11 | |
| US62/203,659 | 2015-08-11 | ||
| US15/091,210 US9845720B2 (en) | 2015-08-11 | 2016-04-05 | Micro shear hub dual ring isolator |
| US15/091,210 | 2016-04-05 | ||
| PCT/US2016/036876 WO2017027093A1 (en) | 2015-08-11 | 2016-06-10 | Micro shear hub dual ring isolator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107921862A true CN107921862A (en) | 2018-04-17 |
| CN107921862B CN107921862B (en) | 2020-11-27 |
Family
ID=57983429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680041798.1A Active CN107921862B (en) | 2015-08-11 | 2016-06-10 | Miniature shearing hub double-ring isolator |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9845720B2 (en) |
| KR (1) | KR102131754B1 (en) |
| CN (1) | CN107921862B (en) |
| DE (1) | DE112016003651B4 (en) |
| WO (1) | WO2017027093A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108025635A (en) * | 2016-01-26 | 2018-05-11 | 双叶产业株式会社 | Exhaust system supporting structure |
| US10343513B2 (en) * | 2016-12-05 | 2019-07-09 | Kubota Corporation | Work vehicle |
| DE102019000970B4 (en) * | 2019-02-11 | 2021-06-17 | Sumitomo Riko Company Limited | Fastening device for an exhaust system component |
| US11821348B1 (en) * | 2022-08-01 | 2023-11-21 | Cummins Emission Solutions Inc. | Systems and methods for mounting an aftertreament system component |
| US11982399B1 (en) | 2022-11-21 | 2024-05-14 | The Pullman Company | Elastomeric mount with bi-directional axial motion control and radial travel limiter |
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2016
- 2016-04-05 US US15/091,210 patent/US9845720B2/en active Active
- 2016-06-10 CN CN201680041798.1A patent/CN107921862B/en active Active
- 2016-06-10 KR KR1020187002540A patent/KR102131754B1/en active IP Right Grant
- 2016-06-10 WO PCT/US2016/036876 patent/WO2017027093A1/en active Application Filing
- 2016-06-10 DE DE112016003651.5T patent/DE112016003651B4/en active Active
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| JPH05106670A (en) * | 1991-10-11 | 1993-04-27 | Toyoda Gosei Co Ltd | Rubber vibration isolator unit provided with bracket |
| JP2002037092A (en) * | 2000-07-24 | 2002-02-06 | Koyo Seiko Co Ltd | Bush and steering system mounting structure |
| JP2010180930A (en) * | 2009-02-04 | 2010-08-19 | Kurashiki Kako Co Ltd | Vibration isolator |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR102131754B1 (en) | 2020-07-09 |
| KR20180030060A (en) | 2018-03-21 |
| DE112016003651B4 (en) | 2023-04-27 |
| CN107921862B (en) | 2020-11-27 |
| WO2017027093A1 (en) | 2017-02-16 |
| US9845720B2 (en) | 2017-12-19 |
| DE112016003651T5 (en) | 2018-05-09 |
| US20170044966A1 (en) | 2017-02-16 |
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